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. 2003 Oct 31;100(23):13184–13189. doi: 10.1073/pnas.2235011100

Fig. 3.

Fig. 3.

Representative quantitative data for a set of GalK variants, illustrating screen for d-galacturonic acid (x axis) and l-altrose (y axis). The higher the loss in absorption [shown in absorption units (AU)], the more active the enzyme variant.